Results 21 to 30 of about 132,138 (238)

Comparison of the Impulse the New BETA Volleyball Designed With Other Volleyballs Samples

open access: yesBiyumikānīk-i varzishī, 2021
Background and aim The sport of volleyball requires constant contact of sports balls with the hands of athletes, Therefore, the sports balls used in volleyball can play an important role in the performance of athletes.
Mohsen Bargahmadi   +2 more
doaj  

(ω,c)-Periodic Solutions to Fractional Differential Equations with Impulses

open access: yesAxioms, 2022
This paper deals with the (ω,c)-periodic solutions to impulsive fractional differential equations with Caputo fractional derivative with a fixed lower limit.
Lulu Ren, JinRong Wang
doaj   +1 more source

Psychedelics and collective trauma: multisystemic resilience and recovery pathways among Nova festival survivors – a qualitative study

open access: yesEuropean Journal of Psychotraumatology
Objective: On 7 October 2023, a mass-casualty attack at the Nova festival in Israel created an unprecedented convergence of collective trauma and altered states of consciousness.
Guy Simon   +4 more
doaj   +1 more source

Dynamic Test of a Viaduct on the Orastie–Sibiu Highway

open access: yesRomanian Journal of Transport Infrastructure, 2017
Dynamic testing of bridges has as target to establish their response on pulse forces between the wheels and unevenness of road surface. Generally, during the tests, real time accelerations or deformations are to be measured and which through successive ...
Lucian Ghindea Cristian   +2 more
doaj   +1 more source

Existence of solutions for a class of second-order sublinear and linear Hamiltonian systems with impulsive effects

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2011
By using the saddle point theorem, some new existence theorems are obtained for second-order Hamiltonian systems with impulsive effects in the cases when the gradient of the nonlinearity grows sublinearly and grows linearly respectively.
Xiaofei He, Peng Chen
doaj   +1 more source

Impulse and DC breakdown strength of polypropylene thin film

open access: yesPhysics of Complex Systems, 2020
The paper presents the results of a study of the electric strength of a polypropylene film with a thickness of 2 μm. The breakdown voltage of the film was determined under the influence of electric pulses and with a slowly increasing voltage. The rate of
Аина Николаевна Тумусова   +2 more
doaj   +1 more source

Unheard and Under‐Supported: Health‐Related Quality of Life in Children, Adolescents, and Young Adults With Sickle Cell Disease

open access: yesPediatric Blood &Cancer, EarlyView.
Abstract Background Sickle cell disease (SCD) is an autosomal recessive hemoglobinopathy affecting millions of individuals worldwide. The clinical expression and psychosocial burden of SCD vary widely across geographical, cultural, and healthcare system contexts, underscoring the need for setting‐specific approaches to assessment.
Desiré Fantasia   +7 more
wiley   +1 more source

Development and Validation of an Analytical Procedure for the Quantitative Determination of Total Flavonoids in Red-Stem Buckwheat Herb (Fagopyrum rubricaulis) by Spectrophotometry

open access: yesРегуляторные исследования и экспертиза лекарственных средств
INTRODUCTION. Red-stem buckwheat (Fagopyrum rubricaulis, Polygonaceae family) is characterised by a high content of flavonoids, primarily rutin. The aerial parts of the plant also contain quercetin, isoquercetin, orientin, vitexin, isoorientin, and other
A. V. Mitishev   +5 more
doaj   +1 more source

Calculation and analysis of torsional vibration of electrical propulsion system under a short-circuit-induced impulse load

open access: yesZhongguo Jianchuan Yanjiu, 2020
Objectives For an electrical propulsion system, the transient torque induced by short-circuit faults is so large that it will exert a greater impact on the safety of shipboard electric propulsion system.
LI Zengguang, ZHAO Hui, ZHOU Ning
doaj   +1 more source

Clinical Course and Impact of Breaks in Therapy for Children With Relapsed/Refractory Solid Tumors

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Pediatric relapsed or refractory (R/R) solid tumors carry a dismal prognosis, and postrelapse patient experiences are not well described. We present postrelapse outcomes, including number of R/R events and subsequent therapy regimens.
Matthew T. McEvoy   +5 more
wiley   +1 more source

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